Here's what rhymes with duobu.
to do two too due du dew tu chew deux bu ju jus peu pu boo chou chu doo tue pooh poo who you new true knew blue drew u blew coup qu shoe zu lieu shew su sue vous fu lu rue stew zoo adieu ado brew hu ku loo mu nu pew seu shu sou vu woo yew yu coo cou ewe feu gu ru shou thu tzu vou wou wu goo moo shoo gnu roux thew whew booboo into through few view grew que crew pursue threw flew q anew bamboo clue cue glue hue queue undue cu flue slew taboo undo flu overdue piu tattoo thru beaucoup eschew fue hew mieux outdo shrew sprue vnto vue clew mew overdo redo strew spew zebu slue phew wazoo achoo atishoo screw canoe renew accrue debut ensue subdue untrue jusqu skew shampoo imbue outgrew cockatoo halloo valuer bugaboo endue fondue foreknew indue kazoo peekaboo bestrew muumuu overshoe overdrew review hitherto overview residue withdrew avenue rendezvous retinue caribou overthrew revue sinew askew ballyhoo honeydew marabou buckaroo overflew prevue overgrew regrew interview revenue construe barbecue kangaroo barbeque superglue hullabaloo misconstrue